Police said the cricketer had a face-off with traffic warden Zeshan at Gulberg's Firdous market area here.
Umar, 23, the youngest of the Akmal brothers, was challaned for the offence by the warden, which led to the argument.
"He (Umar) caught him by the neck and also tore his (traffic warden's) uniform," Tariq Aziz, SSP Gulberg station, told reporters.
Akmal was taken to the police station and case under sections 186, 279 and 353 of Pakistan Penal Code (for obstructing in the official work, tearing police uniform, and misbehaving and hurling threats) was registered against him.
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Umar, on the other hand, counter-alleged that the warden had abused and slapped him.
"The language used by the police officer was not appropriate and he had no right to talk to me like that. He also slapped me. The place where the incident took place has CCTV cameras all around and I would ask the authorities to just look at the footage and then decide whether I have done any wrong," Umar said.
Meanwhile, an eyewitness said that both Umar and the traffic warden hit each other.
"Both (cricketer and warden) hit each other. Other wardens present there interfered and separated them," said Mudassar Sheikh, an eyewitness.